[pulseaudio-discuss] Audio over SSH

[Jeremy Nickurak]

These instructions work, but it's not exactly what I wanted.

I have 2 machines, each logged in. Machine A has a sound card, machine B
does not. I would like to be able to sit down at machine B and run
applications, whose audio will go to the speakers hooked up to A. This means
that an application would have to use one machine as its X server, and
another seperate machine as its pulseaudio server.

What I'd really like is for the pulseaudio server at B to show the
sinks/sources from A, so I could just select A's sound device as the
fallback (although since it's the only device, even that wouldn't be
neccesary.) This takes place over avahi right now as I understand it, but
I'd like it to expand beyond that. (It's a high-speed network, but different
link-level networks).

On Tue, Feb 2, 2010 at 02:38, Colin Guthrie <gmane at colin.guthr.ie> wrote:

> So the easiest way is to:
>
> 1. On the machine where you want to hear things, run paprefs and enable
> network access to local sound devices. To save trouble, it's easiest to
> tick the box "do not require authentication" too but I'll assume you
> have not ticked this box (if things break, this is step one to check!)
> 2. Ensure start-pulseaudio-x11 has been run on this machine (xprop
> -root| grep PULSE will tell you) and if not, run it.
> 3. ssh -X -R 4713:localhost:4713 othermachine
> 4. export PULSE_SERVER=localhost
> 5. Run any pulseaudio client.
>
> That's it.
>
>
> This should setup a reverse SSH tunnel from the destination machine back
> to the source machine. PA uses TCP port 4713 by default for it's network
> support and we override the PULSE_SERVER variable on the remote machine
> to point at localhost which is, in turn, a tunnel over SSH back to our
> source machine which connects to the PA servers network socket.
>
> Other information regarding authentication etc. should be passed across
> in X11 properties (the -X flag to ssh ensures this although I believe it
> is generally enabled by default anyway).
>
> Of course if SSH were aware of PA in the same way it's aware of X11,
> then this wouldn't be needed and it would just work. Perhaps one day :)
>
>
> Hope this helps.
>
> Col
>
> --
>
> Colin Guthrie
> gmane(at)colin.guthr.ie
> http://colin.guthr.ie/
>
> Day Job:
>  Tribalogic Limited [http://www.tribalogic.net/]
> Open Source:
>  Mandriva Linux Contributor [http://www.mandriva.com/]
>  PulseAudio Hacker [http://www.pulseaudio.org/]
>  Trac Hacker [http://trac.edgewall.org/]
>
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-- 
Jeremy Nickurak -= Email/XMPP: jeremy at nickurak.ca =-
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